Title:
Cement Grout Containing Precipitated Silica and Superplasticizers for Post-Tensioning
Author(s):
Josee Bastien, Jerome Dugat, and Evelyne Prat
Publication:
Materials Journal
Volume:
94
Issue:
4
Appears on pages(s):
291-295
Keywords:
bleeding; cement; compressive strength; grout; precipitated silica;
segregation; silica fume; superplasticizers;
DOI:
10.14359/311
Date:
7/1/1997
Abstract:
The purpose of this study is to investigate the applicability of an amorphous precipitated silicate in a low water/cement ratio grout formulation. The rheological and mechanical properties of the proposed grout are very interesting since, from a practical point of view, it exhibits no bleeding or segregation and reaches high compressive strength. This grout could therefore be a cost-effective alternative to traditional silica fume grout. A field injection program indicates that the proposed grout formulation could be adequate for post-tensioning usage. This grout investigation has led to an European patent.